TY - JOUR
T1 - X-ray attenuation cross section measurements in the K edge region of krypton
AU - Deutsch, M.
AU - Hart, M.
PY - 1986
Y1 - 1986
N2 - The absolute X-ray attenuation cross section of krypton in the vicinity of the K edge was measured. The data are analysed within the framework of the screened hydrogenic approximation using various sets of screening constants. Those obtained from relativistic Dirac-Fock calculations give the best agreement with the data, although significant deviations occur from the threshold up to about 100 eV above it. No deviations from monotonicity are observed, and the data seem to support recent theoretical predictions on the decisive role of relaxation and overlap effects in determining the shape of the cross section immediately above threshold. Jump ratios obtained from the data and from theoretical calculations are also presented and discussed.
AB - The absolute X-ray attenuation cross section of krypton in the vicinity of the K edge was measured. The data are analysed within the framework of the screened hydrogenic approximation using various sets of screening constants. Those obtained from relativistic Dirac-Fock calculations give the best agreement with the data, although significant deviations occur from the threshold up to about 100 eV above it. No deviations from monotonicity are observed, and the data seem to support recent theoretical predictions on the decisive role of relaxation and overlap effects in determining the shape of the cross section immediately above threshold. Jump ratios obtained from the data and from theoretical calculations are also presented and discussed.
UR - http://www.scopus.com/inward/record.url?scp=4243491761&partnerID=8YFLogxK
U2 - 10.1088/0022-3700/19/9/002
DO - 10.1088/0022-3700/19/9/002
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AN - SCOPUS:4243491761
SN - 0022-3700
VL - 19
SP - L303-L307
JO - Journal of Physics B: Atomic and Molecular Physics
JF - Journal of Physics B: Atomic and Molecular Physics
IS - 9
M1 - 002
ER -